Human Biology Blood molecules etc 3.0 / 5 based on 1 rating ? Human BiologyHuman, animal and plant physiologyASNone Created by: LaylaCreated on: 14-05-13 17:21 Osmosis The movement of water molecules from a region of higher water potential to lower water potential. across a selectively permeable membrane 1 of 23 Active transport The movement of a substance across a cell membrane against its concentration gradient. 2 of 23 Independant variable ( graph ) The thing you will be changing, on the left too. 3 of 23 Blood pressure The force exerted by the blood against the artery wall 4 of 23 A tissue A group of similar cells specialised to carry out the same function 5 of 23 Tertiary structure When the polypeptide is coiled and folded into a specific shape held by bonds between the r groups. 6 of 23 Quaternary structure The functional protein is made of more than one polypeptide chain, and they are help together by bonds between the r groups like tertairy structure. 7 of 23 Diastole When the heart muscle is relaxed and the atria and then the ventricles fill with blood 8 of 23 Atrial systole Atria wall contracts blood gets pushed into the ventricles and the atria is then emptied. 9 of 23 Ventricular systole Ventricular walls contract, av valves are forced shut 10 of 23 Magnification Size of the pic divided by the real size of the object 11 of 23 Real size size of structure in the pic divided by magnification 12 of 23 Another name for RBC Erythrocytes 13 of 23 Another name for WBC Leucocytes 14 of 23 Eukaryotic cell Has membrane bound nucleus and organelles 15 of 23 Condensation reaction Where two molecules are joined by removing a hydrogen atom 16 of 23 Primary structure The number and sequence of amino acids in the polypeptide chain. 17 of 23 Sino-atrial node (SAN) Specialised cardiac cells in the wall of the right atrium 18 of 23 Atrio-ventricular node (AVN) How impulses pass from the atria to the ventricles, these are specialised muscle cells. 19 of 23 Bundle of his Muscle fibres that spread down the septum between the two ventricles 20 of 23 Myocardial infarction Heart attack 21 of 23 Stroke volume Volume of blood pumped out of the left ventricle in one cardiac cycle. 22 of 23 Cardiac output Volume of blood pumped out the left ventricle in one min 23 of 23
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